Shower flange



FIG. 1 is a front perspective view of the new design for a showerflange;

FIG. 2 is a top view of the new design for a shower flange, the bottom,right and left side views being mirror images; and,

FIG. 3 is a front view of the new design for a shower flange.

The ornamental design for a shower flange, as shown and described.